I have a scene with a DTM, aerial photo and a shapefile with buildingfootprints. The buildings are extruded based on a heigth value read from an attribute.
When viewing this from a distance, the scene looks allright but when navigating closer to the ground both the aerial photo and the buildings within a certain distance from the viewer start to disappear, leaving a white space in the viewport.
How can I prevent this from happening? I want to be able to walk through the 3Dscene.
system : windows 7 64 bit with Geforce GTX 780